John delant avatsox axd jasper aloxzo wtloox



(N0 Model.)

J. D. WATSON & IJ. A. WILGOX.

APPARATUS FOR BORING GYLINDERS.

N, PETERS. mww-umognmhur, washingnm. D. c.

UNITED STATES Ifrricn,

JOHN DELANY VATSON AND JASPER ALONZO WYTLCOX, OF TYAT'IX VA.

APPARATUS FOR BORING CYLINDERS.

PECIFCATCN forming part of Letters Patent No. 349,963, dated September 28, .1886.

Serial No. ltlljill.

(No model.)

.To aZZ whom, it may concern.-

Be it known that we, JOHN Dura-av WAT- sON and .Tasman ALONZO XVI Loox, citizens of the United States, residing at \Vyat.t, in the county of lIarrison and State of Test Virginia, have invented certain new and useful lmprovements in Apparatus for 'oring Engine-Oylinders and Turning Piston-Rods and Packing- Rings; and we do declare the following to be a full, clear, and exact description of the invention, suoli as will enable others skilled in the art to which it appertai ns to make and use the same, reference being had to the accompanying drawings, and to the letters and Iiguresof reference marked thereon, which form a part of this specification.

The invention will first be described in connection with the drawings, and then pointed out in the claims.

Figure l of the d 'awings is a plan view;

' Fig. t), a longitudinal median vertical section;

and Fig. 3 is a vertical cross-section and detail view.

Yln the drawings, A represents a feed-screw, on which turns the internally-threaded hub i2, rot-ated by either One of the two diametrically-unequal wheels C D.

lil is a bevel and spur wheel loose upon a sleeve, c, the bevel teeth meshing with the bevel-pinion F, andthe spurs with the pinion G on shaft g, and rotating the same by being keyed thereto. On this shaft, and rotating therewith but sliding thereon, is arranged the sleeve H, carryingthe two unequal pinions/z if# the one to gear with wheel C, and the other larger pinion, h, with the spur-wheel D.

l is an ordinary clutch-lever, or rather an elbow-lever, whose prongs enter a groove of the sleeve H and serve to bring either one ot the pinions 7L 7l. into gear with its spur-wheel. The bevel-pinion F is on a' shaft, f, and carries the outer end pinion, J, which gears with the smaller pinion, K, on the shalt It. This may be turned by a hand-crank, so as to operate thc whole train of mechanism which feeds the screw A.; or, where greater speed is wished. the hand-crank may be applied to the shaftf. This mechanism, as well as the feedscrew, is supported in a suitable fraaie, M, having curved slots o o in arms O', so that the frame M may he held at varying heights to snit the axes of different cylinders. ln asuitable bed or block, N, may be supported a cylinder, O, which is to be bored. On the screw A is properly secured the tool-head l?, having the two slottedslides 7) p, clamped and held atany desired :'idinstment bythe screws p. One ol' these slides carries the bit Q, while the other carries the roller lt, the two pieces Q and R being diagonally opposite to eachother. The roller or wheel It has for its purpose to steady the bar while boring and to smooth the sharp edges left by the bit. The wheelslide has two slots, p yr", so thatthe wheel may follow the bit in either direction. The boringbar is fed forward by the mechanism to carry the tool-head along as the cylinder is being bored until it has traveled the desired distance. Then thetool and wheel are reversed, so as to work in the reverse directions, thus losing no time at all. NVhen a cylinder is too long to be reached by the vfeed-screw bar A and an extension which may be screwed into the internally-threaded end a, the tool-head may be loosened from the bar when the cntting has ceased and the bar brought back, so as to leave the tool-head where the boring stopped. XVhen the bar is as far back as it will go, the head is made fast on the bar and enabled to proceed with the boring. In this way a cylinder of five or six feet long can be bored by the salire bar and extension. The most important advantage is in the erosscntting, which makes much smoother work. This is accomplished by first boring through the cylinder with the crank on the shaft k turned toward the cylinder', and on the return having` on the shaft f', but turning in the same direction.

A is a face-plate on the end of bar A, and to this are attached the packing-rings for piston-heads, so that they may be turned by a lathe-tool, S, on the post T, whose base iis fed along in the groove of seat U by the swiveled screw V, having the hand-crank o. The

rings are held to the face-plate by S-Shaped hooks or bolts with taps or nuts on one end. The piston-rod is attached to the face-plate by a clamp and bolts, while the lathe is suspended by the two L-shaped rests \V \V from the slotted bar X, held by brackets Y 'Y to the end rim, Z, of the cylinder A.

IOO

Having thus described our invention, what we claim as new, and desire to protect by Letters Patent, is v 1. In an apparatus for boring engine-cy1inders, the combination of the threaded feedbar A, the internally-threaded hub B, carrying` the spur-wheels O D, the bevel and spur wheel E, the pinions F G, the, shaft g, the sleeve H, carrying unequal pinions 71 h, the shaftf, carrying end pinion, J, and the smaller pinion on the shaft la, whereby the boringtool may be fed through the cylinder, in the manner described.

2. The combinati-on, with the feed-bar A, of the tool-head P, the slotted slides p p, the wheel or rollerR, and the bit Q, the said wheel and bit being changeable to opposite direc tions, as and for the purpose set forth.

3. The combination, with the feedbar JA, of the terminal face-plate A', to hold the pis- 2o ton-rod or packing-ring, and alathe, arranged substantially as and for the purpose specified. 4. The combination, with the feed-screw A, of a frame-support, M, having the curved slots o o in its arms O', and the screws O2 O2, where- 2 5 by the feed-screw may be centered to cylinders of different diameter, as ,and for the purpose speoied.

In testimony whereof We afiix our signatures in presence of two witnesses.

JOHN DELANY WATSON. JASPER ALONZO W'ILCOX.

Vtnesses:

C. A. PRICHARD, Sr., J. B. MILES. 

